| in the product | 6 | other |
| absolutely | 4 | degree |
| chemical → be → necessary | 30 |
| chemical → be → required | 18 |
| chemical → be likely to → require | 5 |
| chemical → be needed for → use | 3 |
| negative | neutral | positive |
| 0.322 | 0.586 | 0.092 |
| Raw frequency | 56 |
| Normalized frequency | 0.487 |
| Modifier score | 0.617 |
| Perplexity | 38.757 |